Ideally you want to keep all the link bars the same length and thickness. We used blue tape to mock up our link bars. You can also use PVC pipe to mock up the bars with the links. Before you weld your bungs make sure you tape the Heim joint. Not only does this protect the self-lubricating joint, but it also keeps your weld slag off the threads in the bung itself. The link bar mounting location on the framerails should be at your rig’s center of gravity. Also, lift the truck up and down on the lift before final welding to ensure that there is no binding in the suspension travel.